4021421233331 has 16 divisors (see below), whose sum is σ = 4124230581600. Its totient is φ = 3919619628288.

The previous prime is 4021421233303. The next prime is 4021421233363. The reversal of 4021421233331 is 1333321241204.

4021421233331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4021421233331 - 2⁶ = 4021421233267 is a prime.

It is a super-2 number, since 2×4021421233331² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4021421233294 and 4021421233303.

It is not an unprimeable number, because it can be changed into a prime (4021421233031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43297700 + ... + 43390478.

It is an arithmetic number, because the mean of its divisors is an integer number (257764411350).

Almost surely, 2^{4021421233331} is an apocalyptic number.

4021421233331 is a deficient number, since it is larger than the sum of its proper divisors (102809348269).

4021421233331 is a wasteful number, since it uses less digits than its factorization.

4021421233331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98198.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 4021421233331 its reverse (1333321241204), we get a palindrome (5354742474535).

The spelling of 4021421233331 in words is "four trillion, twenty-one billion, four hundred twenty-one million, two hundred thirty-three thousand, three hundred thirty-one".